Optical video microscope OBL 137C825

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Product overview
The OBL 137C825 is a bench-top digital laboratory microscope supplied as a complete solution including the ODC 825 C-mount camera and Microscope VIS Basic software. The system features an infinity-corrected optical path and a fixed, pre‑centred Abbe condenser for simplified Köhler transmitted illumination.

Included / Scope of delivery

• OBL 137 laboratory microscope with trinocular tube and 10× eyepieces.
• Mounted ODC 825 C-mount camera, C-mount adapter, USB cable (approx. 2000 mm), and Microscope VIS Basic software (KERN OXM 901).
• Protective dust cover, eyecups and multilingual user instructions; calibration micrometer and various eyepiece adapters included.

OBL 137 (features)

• Infinity optical system suitable for demanding transmitted‑light applications.
• Trinocular tube allowing simultaneous observation and camera connection; oculars 10×, visual field 20 mm.
• Standard objective set: 4×, 10×, 40×, 100× (Infinity E‑Plan quality) mounted on a 4-position nosepiece.
• Fixed, pre‑centred and focusable Abbe condenser NA 1.25 with aperture and field diaphragms for simplified Köhler setup.
• Large mechanical cross stage with specimen holder for up to two samples and coaxial coarse and fine focusing on both sides; fine drive minimum 0.002 mm.
• Continuously dimmable 3 W LED transmitted illumination.

ODC 825 (camera / software)

• CMOS sensor (colour), sensor size 1/2.5", resolution 5.1 MP; frame rate approx. 6.8–55 fps depending on settings.
• USB 2.0 interface; camera powered via USB (no separate power supply required).
• Suitable for advanced techniques such as darkfield, phase contrast and fluorescence imaging.
• Delivered with Microscope VIS Basic software for image capture, calibration (object micrometer included) and basic measurements; multiple eyepiece adapters provided.

Technical Data (table)
Optical system: Infinity
Tube type: Trinocular
Ocular magnifications: 10× (visual field 20 mm)
Standard objectives: 4×, 10×, 40×, 100× (Infinity E‑Plan)
Nosepiece positions: 4
Illumination: Transmitted LED, 3 W, continuously dimmable
Condenser: Abbe, NA 1.25, fixed, pre‑centred, focusable
Focusing: Coaxial coarse and fine drive; fine drive minimum 0.002 mm
Camera sensor: CMOS, colour, 1/2.5"; resolution 5.1 MP; framerate 6.8–55 fps
Interface: USB 2.0 (USB-powered)
Dimensions (W×D×H): 394×185×450 mm
GTIN / EAN: 4045761228665

Characteristics / technical specifications

• Product family: OBL‑S
• Model: OBL 137C825
• Trinocular tube; camera connection possible
• Infinity corrected optical system with Plan E objectives
• Abbe condenser NA 1.25, fixed and pre‑centred
• Large mechanical stage with dual sample holder
• CMOS camera ODC 825, 5.1 MP, USB 2.0, USB‑powered
• Delivered with Microscope VIS Basic (KERN OXM 901), USB cable and calibration micrometer